under someone's spell

under (one's) spell

Influenced or controlled by one because they are considered fascinating, enchanting, or seductive. Our son never acted out like this before he fell under that new student's spell. Ever since I fell under Susan's spell, our relationship has progressed much more quickly than I would normally be comfortable with.
See also: spell
Farlex Dictionary of Idioms.

under someone's spell

Fascinated or influenced by someone, as in I think he has our daughter under his spell. This idiom derives from the literal meaning of spell, "a word or formula that has magical power." [Mid-1800s]
See also: spell
The American Heritage® Dictionary of Idioms by Christine Ammer.

under someone's spell

so devoted to someone that they seem to have magic power over you.
See also: spell
Farlex Partner Idioms Dictionary
See also:
  • under (one's) spell
  • under somebody's spell
  • under the spell of (someone)
  • be under (someone's) spell
  • be under the spell of (someone)
  • fall under (someone's) spell
  • fall under spell
  • fall under the spell of (someone)
  • have (someone) in (one's) spell
  • have in spell